From Grove comes Bamboo Case ($79-$129), the first wooden case we've seen released for the iPhone 5. It's available with a plain back for $79, etched with one of the company's own designs for $99, or a custom design for $129. The case is a slider with a plastic-feeling plant fiber composite on the inside, and bamboo on the outside. An opening along the left side allows access to the vibrate switch and volume buttons, while there are very tight holes…